Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Carried out the microbiological and molecular studies: MLD-S. Participated in the design and coordination of the study, sequencing, and drafting of the manuscript: MLD-S. Participated in the design and coordination of the study and drafting of the manuscript: FP. Coordinated bioinformatics analyses: FP MR. Participated in the sequencing: SCS PP KK. Supplied HaloLex tools for the bioinformatic analysis: KG. Conceived the study and participated in its design and coordination: DO. All authors read and approved the final manuscript.